body {
    background: #f8f9fa;
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
}

.card {
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border-radius: 10px 10px 0 0 !important;
}

.card-footer {
    background: transparent;
    border-top: 0;
}

.btn {
    border-radius: 8px;
    font-weight: 500;
}

.btn-primary {
    background: linear-gradient(135deg, #007bff, #0056b3);
    border: none;
}

.btn-success {
    background: linear-gradient(135deg, #28a745, #1e7e34);
    border: none;
}

.alert {
    border-radius: 8px;
    border: none;
}

.form-control, .form-select {
    border-radius: 8px;
    border: 2px solid #e9ecef;
}

.form-control:focus, .form-select:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

h1 {
    color: #343a40;
    font-weight: 700;
}

.badge {
    font-size: 0.85em;
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .card-body {
        padding: 1rem;
    }
}